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steposvetlana [31]
3 years ago
15

The top edge of the window is a semicircle. The distance across the window is 2.5 ft. What is the distance around the top edge o

f the window? Use 3.14 for π, and round your answer to the nearest tenth.
2.5 ft
3.9 ft
5 ft
7.85 ft
Mathematics
2 answers:
taurus [48]3 years ago
8 0

Answer: 3.9 ft

Step-by-step explanation:

From the question, the distance across the window which is 2.5 ft is the diameter. Therefore, radius will be:

= 2.5 / 2

= 1.25 ft

Then, we calculate the circumference of the circle which will be:

= 2πr

= 2 × 3.14 × 1.25

= 7.85 ft

Nite that it's a semi circle, therefore we divide the perimeter by 2. This will be:

= 7.85/2

= 3.9 feet

bearhunter [10]3 years ago
7 0

Answer:

b

Step-by-step explanation:

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